Knowles Electronics

Grayhill is a leading designer and manufacturer of DIP, tact, pushbutton, rotary and encoder switches, keyboards, keypads and front panels, I/O modules, control systems, and wireless products. The privately held firm was started in 1943 to manufacture miniature precision components for the electronics industry. The company produces high quality components for commercial, industrial and military markets. In addition to engineering and manufacturing, Grayhill sells internationally through independent local manufacturers' representatives and a network of local, regional, and national stocking component distributors for switch products and industrial distributors for industrial control products. The company employs 600 people in its four worldwide locations LaGrange and Carpentersville, Ill., Iola, Wis., and Shenzhen, China.

Clinton Electronics Corporation was founded by Thomas L. Clinton Sr. in 1963. The company was established to manufacture black and white, which is also known as monochrome, cathode ray television tubes. At that time, industry indicators were predicting that black and white television was doomed to extinction by the much more glamorous portable color television sets. The company remains in the electro-optical telecommunications market. Its cathode ray tubes, electron guns, monitors and components are regarded as world-class products. Clinton Electronics Corporation is located in Loves Park, Ill.

Electronic Connector Corp has been serving electronic connector needs since 1963. It specializes in connectors of all types, including cylindrical, RF/coaxial, fiber optics, D-subminiature, flat cable (IDC), printed circuit, as well as ribbon, rack and panel in both, mil-spec and commercial versions. Located in Chicago, Ill., Electronic Connector Corp is an ISO 9001:2000 certified company and is a stocking distributor. The company maintains an extensive inventory of connectors, components, contacts, accessories and tools to meet immediate and scheduled requirements.